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// Scintilla source code edit control
/** @file Accessor.cxx
** Interfaces between Scintilla and lexers.
**/
// Copyright 1998-2002 by Neil Hodgson <neilh@scintilla.org>
// The License.txt file describes the conditions under which this software may be distributed.
#include <cstdlib>
#include <cassert>
#include <string>
#include <string_view>
#include "ILexer.h"
#include "Scintilla.h"
#include "SciLexer.h"
#include "PropSetSimple.h"
#include "WordList.h"
#include "LexAccessor.h"
#include "Accessor.h"
using namespace Lexilla;
Accessor::Accessor(Scintilla::IDocument *pAccess_, PropSetSimple *pprops_) : LexAccessor(pAccess_), pprops(pprops_) {
}
int Accessor::GetPropertyInt(std::string_view key, int defaultValue) const {
return pprops->GetInt(key, defaultValue);
}
int Accessor::IndentAmount(Sci_Position line, int *flags, PFNIsCommentLeader pfnIsCommentLeader) {
const Sci_Position end = Length();
int spaceFlags = 0;
// Determines the indentation level of the current line and also checks for consistent
// indentation compared to the previous line.
// Indentation is judged consistent when the indentation whitespace of each line lines
// the same or the indentation of one line is a prefix of the other.
Sci_Position pos = LineStart(line);
char ch = (*this)[pos];
int indent = 0;
bool inPrevPrefix = line > 0;
Sci_Position posPrev = inPrevPrefix ? LineStart(line-1) : 0;
while ((ch == ' ' || ch == '\t') && (pos < end)) {
if (inPrevPrefix) {
const char chPrev = (*this)[posPrev++];
if (chPrev == ' ' || chPrev == '\t') {
if (chPrev != ch)
spaceFlags |= wsInconsistent;
} else {
inPrevPrefix = false;
}
}
if (ch == ' ') {
spaceFlags |= wsSpace;
indent++;
} else { // Tab
spaceFlags |= wsTab;
if (spaceFlags & wsSpace)
spaceFlags |= wsSpaceTab;
indent = (indent / 8 + 1) * 8;
}
ch = (*this)[++pos];
}
*flags = spaceFlags;
indent += SC_FOLDLEVELBASE;
// if completely empty line or the start of a comment...
if ((LineStart(line) == Length()) || (ch == ' ' || ch == '\t' || ch == '\n' || ch == '\r') ||
(pfnIsCommentLeader && (*pfnIsCommentLeader)(*this, pos, end-pos)))
return indent | SC_FOLDLEVELWHITEFLAG;
else
return indent;
}
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